A 25,000-gallon fiberglass aboveground storage
tank had reached the end of its design life. The
tank had contained slurry water used to mobilize
spent carbon to regeneration furnaces. FRC
removed and disposed of the sludge from the tank,
triple washed the tank in accordance with an
approved closure plan, and then demolished the
tank. FRC installed the new tank, replacing all
piping and fittings, including the influent and
discharge lines, vents, the tank level gauge
board, a ladder, and an OSHA rail. FRC provided
its professional engineer's certification required
for the old and new tanks. The entire project was
performed within a seven-day plant shutdown.